Accessing The Modulation Circuit Board; Troubleshooting - Beretta Idrabagno Lx 11Serie Manual Del Instalador Y Usuario

To open the instrument panel:
- remove the screws C
- slide the instrument panel out and rotate it to the stop position
See Fig. 46
At the end of the operations described above, put everything back in the
reverse order.
b
The gasket F should always be in its original seat.
See Fig. 47

6.3 Accessing the modulation circuit board

b
First disconnect the appliance from the electrical power supply us-
ing the mains omnipolar switch.

7 TROUBLESHOOTING

safety is optimised. This would normally involve:
- removing any rust on the burners
- removing any build-up on the electrode
- cleaning the combustion chamber
- checking that the appliance switches on and off and operates correctly
- checking the fan is operating correctly
- checking the air pressure switch
-
b
FAULT
Boiler does not switch on
No spark but fan operating
Burner does not come on
Burner does not switch off when water shut off
switches off
Models 11-13
- To access the electronics of the control box, remove the casing and
turn the instrument panel
- Remove the cover to access the board.
See Fig. 48
Models 17
- To access the electronics of the control box, remove the casing and
take out the instrument panel
- remove the two screws G
- remove the cover and access the board.
See Fig. 49
CAUSE
- No electrical supply
- No gas feeding
- Air in gas line
- Pressure switch fault
- Pressure switch tube not connected or cut
-
- Electrode cable cut off
- Broken electronic board
-
- Electrode cable cut off
-
- Main solenoid valve does not open
- Flow switch fault
- Inlet/suction line pipe not installed correctly
SOLUTION
- Connect to the mains
- Turn the gas on
- Bleed the circuit
- Replace
- Check – replace – insert
- Replace
-
- Check – replace
- Check – replace
- Check – replace
- Check connector contacts and if necessary
replace the board
- Check and replace if necessary
- Replace
- Check pipe seal
ENGLISH
25